Metallic piling



G. G. GREULICH 2,151,847

March 28, 1939.

METALLIC FILING Filed Dec. 29, 1937 Patented Mar. 28, 1939 PATE-NT"OFFICE j nm'rsrnc mime set-e111 G.'Greulich, Mount Lebanon, Pa.

Application December 29, 1937, Serial No. 182,351

1 Claim.

The present invention relates to metallic piling.

An object or this invention is to provide a metallic pile made frompreformed relatively light gage sections.

Another'object is to provide a piling shell possessingsumcient strengthto withstand the driva ing iorce necessary to position the pile inplace.

Other objects and advantages will become apparent as the descriptionproceeds, in which: Figure 1 is a sectional elevationoi the' presentinvention showing the piercing point and driving ring inzposition;

manner of forming the piling shell;

Figure 4 is a section on the line IV-IV of H8- llle Figure 5 is anelevational view similar to Figure 20 .1 but showing the piling shelltapered;

Figure 6 is a'top plan view of Figure 5; and

Figure '7 is a section on the line VII-VII oi Figure 6. I

In the drawing, the metallic piling includes pre- 25 formedcomplementary sections 2 01 any desired crow-sectional shape, suitablywelded, in any conventional manner, along their edges." Under thepresent invention, light gage materials are preformed, as'desired, by anordinary cold rolling- 30 process. These preformed complementary sec'tions 2 are provided with reenforcing ribs 3 ex-j tendinglongitudinally from one end of said piling shell to the other while, ifdesired, transverse reenforcing ribs 4 may be provided intermediate 35oi the longitudinal ribs, as shown in Fig-' ure tions 2 may be providedwith laterally'extendedflanges I, as shown in Figures 3 and 4, in whichcase the welding of said sections along the contact surface of saidflanges may be accomplished by 5 the conventional spot-welding method;In either I 7 case, the preformed complementary sections 2 are assembledinto a unitary shell to whichls secured, upon one end, a piercing point6.

The piercing point is p reierably a cast member.

Figure 2 is a section on the line 11-11 of Figure Figure 3 is anelevational view showing another having a tapered conical point in orderto provide a self-centering actionv during driving of said piling shellinto proper position. An annular flange I is provided upon the innerwall of said piercing point to support and retain said comple- 5 mentarysections forming the piling shell upon said point 8. The ends of saidcomplementary sections are welded, in any conventional manner. to thepiercing point 6.

In forming the piling shell from relatively light 10 gage stock, it isnecessary to protect the top edges of said-complementary sections duringthe driving of said piling shell into proper position. In order that'thepiling shell will withstand the impulses received during driving, ametallic ring I is in- 15 serted within the inner wall of said pilingshell and provided with a flange 9 extending laterally to a pointslightly beyond the ribs 3. This ring: maybe welded, in any conventionalmanner, to the end 0! said piling shell. I

There is shown a straight cylindrical piling shell in,Flgures 1 and 3.If desired, the piling shell may be tapered toward the piercing point 6,as shown in Figure 5.

' While I have shown and described speciilcem I bodiments oi the presentinvention, it will be understood that I do not wish to be limitedexactly; 1

thereto, since various modifications may be made' without departing fromthe scope of the invention, as defined by the following claim.

' I claim: v 1 a v A tubular metallic pile comprising a'plurality oi!complementary arcuate sections welded together to provide a hollowchamber. said arcuate sections providedwith spaced longitudinally ar 35ranged reinforcing corrugations and transverse corrugations betweencertain of said longitudinal corrugations, a piercing point welded tothe bot-- tom, portion'o; said hollow chamber and an annular protectivedriving ring welded to the upper portion of said hollow chamber andpositioned within the bore thereof and including a laterally extendingflange extending over the top edge-oi said pile and terminatinginsubstantial align ment with said corrugations whereby said pile '45withstands the impact oi the blows during driving or said pile inposition.

exam: G.

